Actually it is an Adobe problem...they are the ones reverse engineering the Canon RAW format. Canon, as far as I know, did not give the coding or algorithims to Adobe (or anyone else for that matter) to 'mess about with'. There is no sharing of the RAW with Canon, Nikon or any other manufacturer. All these software companies making RAW converters are working from their understanding of the RAW format the camera manufacturers are producing.
The comments I was making is not particular to any one software company (as I pointed out with my example of AutoCAD, which I use day in/day out) or hardware company. There is a growing problem of landfills having to deal with old computer components that would, if reworked, do many basic and useful tasks but the existing software does not work on them. So we just junk them.
I, myself, ran into a similar problem with a very good working flatbed scanner that was not USB connected...it was a Parallel ported. I had not really given it a full workout but in the upgrade to XP from '98 the manufacturer decided to drop the scanner as the technology was just not 'up to par' to handle the new O/S. So I ended up buying a new scanner just to be able to keep that capability in my setup. Needless to say I was PO'd. I ended up giving that scanner to my nieces who were still running '98. I don't know if they've upgraded yet or not but when they do the scanner will probably go to the landfill also.
Let's face it, we live in a 'throw away' computer society. It's cheaper to buy a new keyboard than to take the old one to a tech to clean/fix (sticky keys). I've got this great collection of hardware happening now. And of course the schools who would in the past take the old computer hardware don't want it any more...there are no old software around any more and the software companies are not recoding the newer programs to run on the older equipment.
If Atlantashooter manages to find a 'tweak' to get his PS7 (old tech) to work with the 30D (new tech) all the more power to him. But, like others have said, he'd be better off on finding something else (he should check out RawShooter) or upgrading to CS2.
"Beauty is more than skin deep"